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| Criterion |  UX Research User Interviews |  UX Design Service Blueprinting |  Product Discovery Kano Model |  UX Research Customer Journey Mapping |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | When a service experience is spread across several touchpoints, it brings frontstage and backstage together. It shows where user contact and internal responsibility must fit. | When features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | When a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30–60 min per interview | 0.5-2 Tage | 1-2 Tage | 2-4 h |
Participantsdifferent | 1 participant per interview | 6-12 | 10-50 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Service Blueprint, Fail Points, Ownership Map | Kano Matrix, Feature Classes, Priority Themes | Journey Map, Pain-point List, Opportunity Backlog |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Service designOperationsJourneyBlueprint | SatisfactionPrioritizationCustomer | JourneyServiceService design |